Home / 28,369.60-42,556.50-9,642.04

Finding the Fourth Proportional to 28,369.60, 42,556.50 and 9,642.04

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Solution

The fourth proportional to 28,369.60, 42,556.50 and 9,642.04 is: 14,463.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.60 : 42,556.50 = 9,642.04 : x
  2. Step 2: Convert to fraction form
    28,369.60/42,556.50 = 9,642.04/x
  3. Step 3: Cross multiply
    28,369.60x = 42,556.50 × 9,642.04
  4. Step 4: Simplify right side
    28,369.60x = 410,331,475.26
  5. Step 5: Solve for x
    x = 410,331,475.26/28,369.60
  6. Step 6: Final answer
    x = 14,463.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.